Economists who want to compare the living standards of countries often use GDP, but the calculation and usefulness of the measurement remains controversial.

The Democratic and Republican presidential contenders have begun defining their approach to major foreign policy issues as they jockey for position in their parties’ primaries.

Washington continues to claim Ankara as “strategic partner.” Let’s stop pretending it is.

At the COP27 summit, leaders will discuss how to deal with the many consequences of climate change. These four cases show how the climate crisis is altering the threat of zoonotic diseases.

Erdogan promises to finish America's fight against the Islamic State, but it's the Kurds that he's out to destroy.